Home / 78,836.93-118,273.22-26,248.49

Finding the Fourth Proportional to 78,836.93, 118,273.22 and 26,248.49

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Solution

The fourth proportional to 78,836.93, 118,273.22 and 26,248.49 is: 39,378.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,836.93 : 118,273.22 = 26,248.49 : x
  2. Step 2: Convert to fraction form
    78,836.93/118,273.22 = 26,248.49/x
  3. Step 3: Cross multiply
    78,836.93x = 118,273.22 × 26,248.49
  4. Step 4: Simplify right side
    78,836.93x = 3,104,493,432.44
  5. Step 5: Solve for x
    x = 3,104,493,432.44/78,836.93
  6. Step 6: Final answer
    x = 39,378.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.